Are you facing mobile substrate issues in Cydia after jailbreaking your iPhone, iPod touch or iPad on iOS 4.3? Well, Here is a good news for you. Now you can fix this issue. An unofficial update for MobileSubstrate has been released by Saurik which will solve the incompatibility of MobileSubstrate with iOS 4.3. The official update for MobileSubstrate will be available at Cydia soon. As we know Apple has implemented Address Space Layout Randomization technique in iOS 4.3, due to this ASLR technique MobileSubstrate was broken.

You will need to have jailbroken iPhone, iPod touch or iPad to install the unofficial update for MobileSubstrate. You can follow the steps posted here to jailbreak your iPhone, iPod touch or iPad on iOS 4.3 using Sn0wbreeze. Now follow the step by step instructions posted below to fix mobile substrate issues in Cydia after iOS 4.3 jailbreak.

How to Fix Mobile Substrate Issues in Cydia After iOS 4.3 Jailbreak

STEP 1. First you have to launch Cydia, then install iFile and Safari Download Manager for your iPhone, iPod touch or iPad.

STEP 3. Now you have to download the .deb file to: /var/mobile directory.

STEP 4. Now launch iFile and then go to /var/mobile directory. Then click on the Mobile Substrate .deb file. In order to install it simply click on “Installer” button.

STEP 5. Now you have to restart your iPhone, iPod touch or iPad in jailbroken state.

That’s it. In this way you can fix mobile substrate issues in Cydia after iOS 4.3 jailbreak. If you found any difficulty in following the above steps then feel free to ask in the comment section below. [via]